the system does not have to work as much to either cool the building or heat the building. >> this building also incorporates or utilizes under floor system for delivery of heating and cooling to the building. this in conjunction with the high efficiency equipment that we've installed in the building reduces the consumption of energy for heating and cooling by 51%. >> we have two destination elevators. destination elevator save 35 to 40% of the electrical energy over traditional elevator. these elevators save energy by using a regenerative drive. when the cars are going up empty or down full of people, they generate electricity that goes back into the building grid. these elevators have energy by grouping people going to the same floor in the same cab. and the way they work is you have a shared elevator call button in the lobby. you would indicate which floor you're going to, for instance like 3, and it will direct me to elevator c. so, i'll go to an elevator with

people that are going to that same floor. what's also interesting is inside the elevator floor cab there are no selection buttons because i selected my floor in the lobby. this takes some getting used to as we're all accustomed to choosing our floor inside the elevator cabs. ♪ ♪ >> another thing we saut that was a challenge for this building was the permitting process for the delivery machine to use reclaimed water in an office building. and i think that we really broke the ground for future use to be much more commonplace for utilization of reclaimed water in office buildings. this building uses 60% less water than a typical osv building. that's achieved by using rainwater for landscaping, treating wastewater on-site for reuse in the building's toilets. >> the machine is an ecological

waste treatment system for water resouls. so, the living machine to accelerate what happens naturally in nature is biomimickery that happens in tidal estuaries. it brings in nutrients to the microbes. it's delivered in the air, and does the rest of the process, chewing up those nutrients in the water and producing nitrogen and carbon. we're doing that in a system where we're creating 12 to 16 tides per day. >> the wastewater for our building begins its journey by travel tog our primary tank which is a fairly normal looking manhole. beneath these manholes is a 10,000 gallon primary tank. there are two chambers. the trash chamber which filters out the trash and plastics and

the organic solids settle out just as normal wastewater treatment process is. the water then flows to an equalization tank, a recirculation tank, and then on to tidal flow wetlands cell 1a. all those these cells look to be only 3 or 4 feet deep, they're actually 8 feet deep below this concrete sidewalk. the water repeatedly cycle into the cell from the bottom up. as the water comes up into this cell, it meets the microbes here to treat the wastewater. they flourish off the organics found in the wastewater. after multiple cycles, most of the wastewater treatment has already occurred and the water then flows to the vertical cells located around the corn iron polk street. 2c is located half outside on polk street and half inside in the building lobby. after the final polishing, the water flows to the disinfection room of the basement of the building. there the water goes through two disinfection processes. first ultraviolet light, and

second a dosing of chlorine. the treated water is stored in a 5,000 gallon reclaimed water tank where it is pumped throughout the building for toilet flushing purposes. the treatment cycle is complete and the water is reused again and again. this new building features a rainwater harvesting system. rainwater is captured from the building's roof and the children's play area along the side of the building and sent down to our disinfection room where there is a 25,000 gallon sis tern. the rainwater receives minor treatment and is used to irrigate the building's trees and landscaping. >> when we're resues using water we have on-site, we're not purchasing new water and we're also not putting sewage down into the sewer system which is costs money. this is a demonstration project of 5,000 gallons a day. it is the beginning of understanding and feeling comfortable with this technology that can be scaled up into eco districts and community scale systems, campus-type systems where in those situations when the water

is reused and the numbers are much higher, 50,000, 100,000, 200,000 gallons a day, imagine the savings on that that you're getting. you're not purchasing freshwater and you're not using the sewer and being charged appropriately. this wastewater processing and reuse technology is cutting edge. and although it's been successfully implemented in other cities, it will be one of the first such installations in an urban office building. >> here is a city agency that treats wastewater, but they send no wastewater to the treatment facility. that says a lot. >> it's got a 12 gallon per day occupancy using 5,000 gallons per day with a building officing 1,000 people. that turns out to save over 2.7 million gallons a year. >> the public utilities commission runs water, power and sewer services for san francisco. we can't afford to be out of business after an earthquake.

so, we're thinking about building a building. that building is going to hold our operations center and our emergency operations center for things like earth quack. that building had to be immediately occupiable. great. but we can do better than that. so, this new technology that we ended up using was a concrete building that straps basically, that goes through the interior of the building and allow the building to turn or twist as part of an earthquake as it corrects itself. >> in the course for the puc building, we've actually incorporated in addition to that steel that's embedded in the monolithic concrete, specialized high strength cables that are not bonded to the sound concrete, but are threaded through essentially hollow conduits in the cast concrete. and when those cables are spread, they're actually anchored and they're actively in other floors and pressing down, forcing that concrete wall into a state of compression.

and that's the characteristic which allows the building to shake, absorb energy from the earthquake, deform, and also come back to its original geometry. what that meant was the building would be functional. it meant it wouldn't have to be abandoned and fixed. >> we have probably the greatest specification for concrete ever developed for a project that has a really innovative structural system. one of the things that's evident from the research that's been done is that concrete is responsible for a significant amount of co2 production. and that's worldwide. and we developed a way in which we could incorporate replacement material such as flag and fly ashe to supplement the portable cement and allow a big reduction in those carbon

emissions associated with production from that poured cement. >> concrete for the building has a 70% replacement value with recycled materials fly ashe and recycled materials that would otherwise go to waste. reducing our carbon footprint in half. >> the way that we often do buildings in the city are often projects in the city is we go out and we do a low bid. somebody bids on something, we have to do everything that's expected out completely. and everything after that thorable change prosecretary is very difficult. spec ed out. >> we use design bid delivery method. in this one we did a construction manager gc, which really means that we bring the contractor on board as we design and they participate in the design. it brings a lot of collaboration. >> the department of public works decided to try a more team oriented approach with

this project. the best value approach. they really went to to us come on board as a team member and work with them. >> what that meant was the contractor allowing key subcontractors such as the electrical, mechanical, plumbing systems, would always be reviewed and looked at for constructability, for cost constraints, for scheduling. >> and it was a risk for the city. it was a change for the city, it was something very, very different. we met all of our project parameters, the budget, the schedule. we love this project. it is a fantastic example of what can happen when you take a risk, you do something differently, and you work together. you get a great result. >> one of the things we're going to have in that building is going to be this media wall

in the lobby. and that media wall has several things that it can show people, but one of the things it can show our employees and our visitors is how much energy, how much water, what we're using in the building. >> the wall is based on building data. we have total energy use per floor. we also have energy use in the building today that will show information and percentages on how much is being used today versus an average day. there's also information from solar, how much solar the building is producing, and showing the savings from solar. we also have reclaimed water and that will be shown per month. the center section is dedicated to water, wastewater and power. we have live information showing us how much wastewater has been treated so far from the night before. there is also a twitter feed and information that anyone that comes in can see, you know, current news and information from the twitter. there's also bart information, when is the next bart leaving,

when is the next train departing. and there is weather, hetch hetchy, and weather at san francisco. >> the physical arts wall is comprised of 54 feet, 160 high-definition monitors that has a 3-d motion detection that allows you to approach the wall and then to look at the contents that is there in front of you, which is a beautiful artistic narrative. and then as you move towards it, it activates the content that comes up. >> this is one of the applications we developed with communications team at the puc and it's called, and it's about water cycle, how the water comes down from the snow in yosemite, into the mouth of the reservoir, gets treated, produces power, comes all the way down to the city and gets charged and leaves the bay. we developed a motion tracking system taw four cameras on the ceiling here which detects people when they approach the wall and presents information

pop ups. so, you can enjoy it from a distance as a landscape, but once again up close there is another level of information that's educational about this facility. >> fire fly by artist ned con is an art installation which rises straight from the golden gate avenue sidewalk to the top of the building. >> the fire fly wall will be 5 by 5 polley carbon plates that will move with the wind and show a wave effect in the daytime. when those also swing back and forth and they hit the fulcrum, it will also set up an led light that will cover the fire fly. so, at nighttime people in another part of san francisco can see the side of our building and about 20 feet wide and 10 stories high will be a wall that will flickr on and off like fire flies at nighttime. it will be so energy efficient

that if all those lights go on, it will be the equivalent of a 40 watt bulb. and also the new piece of artwork going all the way down the side of the building, which looks like this incredible wind ripples on a pond. and i thought, oh, my god, how incredible, how wonderful. >> inside the building we will have water walls in the main staircase, and the water will be dripping through the side of the wall. you'll be able to hear it, you'll be able to see it. we call the san francisco artists and galleries and said, hey, we want a building that is a place people want to come to work in and to visit. we're now going to be buying art from between 08 and 100 local artists in san francisco and the arts commission will be hanging in that art the next couple of months in the building. >> we'll have a cafe in the lobby. the cafe will be serving people

there. they'll have a child care center on-site so people with children can come to work. if something happens to their child they can walk right downstairs. it has enough space for 65 kids. >> we looked at various ways that we could be creative in promoting alternative transportation. we did this by providing bike racks and showers in the building. we do see the number of parking spaces to two parking spaces and providing electrical charging stations for alternative vehicles. >> it's time for us to have a home that all of us can be proud of. >> and we couldn't do this without everybody working together on the one goal, which is, let's build something that reflects the honor of hetch hetchy, the honor of the greatest engineering feats, reflects what our puc does for

our public, and for generations to come it will educate everybody. >> i'm really proud that one of the greenest and most sustainable buildings is here in norm in district 6. the wind turbine, the solar power, the living machines, recycled water that ed and the mayor has already spoken to. and what's also amazing about this building is it's not just internally, but you can actually see it on the outside. so, when people are walking around the city they can actually see the green and environmental aspects. >> what better way to show that the puc cares about the environment and the puc is going to show everyone else, you can do this, too. and you can do it in a way that makes sense, that's affordable, and that is better for the environment. >> and this is the most energy efficient government building in the united states today, if not the world. and it is an example that the entire united states can look to and say, that's what we need to do to save our city hundreds of millions of dollars in energy consumption a year and

set an example to everybody of how to save energy, to be green, to be sustainable, to be responsible. the city is leading the way. >> it will be immediately recognizable and iconic from various parts of the city or even if you see a picture. that's the sfpuc building. it's a wonderful building. ♪ ♪

>> hello, my name is jamie harper. in this episode, we are featuring the park locations in your very own backyard. this is your chance to find your heart in san francisco with someone special. golden gate park's largest body of water is this lake, a popular spot for strolling and paddling around in boats, which can be rented. created in 1893, it was designed foreboding and -- for boating. it is named for the wild strawberries that once flores. a pleasant trail follows the perimeter past huntington

falls, 110 foot waterfall. two bridges connect the trail to the island. the climb to the hills summit, the highest point in golden gate park at more than four hundred feet. you can get quinces of the western side of the city through -- glimpes of the western side of city through a thick trees. the lake is ada accessible. it has a peaceful atmosphere where you can enjoy a warm day. walk along the lake and watched many ducks, and swans, and seagulls. it is a tranquil spot to stroll, enjoy each other's company, and sail away. many couples come here to take a ride around the lake, floating under the bridges, past the pavilion and waterfall. for a quiet getaway, it makes for a memorable and magical

experience. located on 19th avenue, this grove is the place to wear your hiking boots, bring your family, and bring the dog because it has so much to offer you and your loved ones. it is a truly hidden gem in the city. the part is rich with eucalyptus trees. long paths allow you to meander, perfect for dog walking in a wooded environment. >> i enjoy this base and the history behind it. the diversity that exists in such an urban city, the concrete, the streets, cars, we have this oasis of a natural environment. it reminds us of what san francisco initially was.

>> this is a section for dogs and plenty of parking. transit is available to get you there easily. and the part is ada -- park is ada accessible. there is also a natural lake. this is your chance to stroll and let the kids run free. it also has many birds to watch. it is the place to find some solitude from the city and appreciate what you share with a wonderful breath of fresh air. , an experienced this park and enjoy the peoples, picnics, and sunshine. this is a lovely place to take a stroll with your loved one hand in hand. located in the middle of pacific

heights on top of a hill, lafayette park offers a great square a of a peaceful beauty. large trees border greenery. it features tables and benches, a playground, restaurants, and tennis courts. there are plenty of areas for football, frisbee, and picnics. it is very much a couple's part and there are a multitude of experiences you can have together. bring your dog and watch the mean go with the community or just picnic at one of the many tables and enjoy all of the park has to offer. many couples find this is the perfect place to put down a blanket and soak up the sun. it is a majestic place you can share with someone you cherish. it is located along the 1 and 10 buses and is accessed from the 47 and 90 buses.

it is ada accessible. for more information about reserving one of these locations, call 831-5500. this number is best for special events, weddings, picnics, and the county fair building. for any athletic fields and neighborhood parks, 831-5510. you can also write us. or walking in and say hello at old lock cabin, golden gate park. and of course you can find more information and reach us at sfrecpark.org.

♪ ♪ [applause] >> ok. that was really beautiful. we would like to welcome you to the third annual statewide celebration and recognition of asian-pacific islander american heritage month. this event is hosted by the mayor. i will tell you a little bit more. it is a non-profit, non- partisan. since 2001, our focus has been on educating the public on public policy. and fostering the future leaders from our minority communities to serve at federal, state, and local levels. the mission is to empower

patients and pacific islander americans in civic and public affairs to education, active participation, and leadership development. >> civic engagement, leadership development, and community servthe theme of tonight's evens a celebration of the achievements and accomplishments of asian-americans in the state of california and our nation. >> ok'ing. -- ok. i would like to introduce our host for this evening. very well known as the first asian-american mayor in san francisco history. mayor lee championed balancing

the budget to keep san francisco safe, solvents, and successful. he reformed city pensions. his focus is on economic development, job creation, and building san francisco's future. a great job, especially for helping out families. we want to keep families here. i also wanted to mention a little bit of his past. he was born in 1952 in the beacon hill neighborhood of seattle, washington. his parents immigrated to the u.s. from china and the 1930's. his father fought in world war ii and worked as a cook. he passed away when the mayor was 15. his mother was a seamstress and a waitress. mayor lee has five siblings, he

graduated from college in maine, he also went to uc- berkeley law school and finished in 1978. he and his wife have two daughters. i also want to mention, prior to becoming mayor, one of the key points in his contributions to the community is after he completed law school, he worked as a managing attorney for the san francisco asian law caucus, where he was an advocate for affordable housing and the rights of immigrants and renters. mayor lee -- [applause] >> thank you.

welcome to city hall. the people's city hall, san francisco. i want you all to note that that was such a wonderful rendition of our national anthem. please give another applause to the millennium -- melanie and her daughter. i am so excited about all of you and seen so many of you from all over our state. come to city hall anin san francisco, welcome. i would like to welcome the former secretary of transportation. [applause] thank you for being here. thank you, john, thank you.

our board of supervisors comment david chiu, thank you very much. david campos, thank you for being here. he is our adopted asian brother. we have so many of our state representatives here. so many of you are here. i have spent all night announcing your names, but they did not give me the full list. i will say thank you on behalf of our city. from sacramento, los angeles, from all the communities in between, thank you for coming to our fantastic city to celebrate our asian-pacific heritage month. it is my